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장한나 ( Han Na Jang ),이명석 ( Myung Suk Lee ) 대한가정학회 2013 Human Ecology Research(HER) Vol.51 No.4
Postponing childbirth is becoming increasingly common and consequently serious social problem in Korea, among married-working women. It is relatively unknown which factors determine married-working women’s childbirth intention. This study investigated the effects of demographical factors, labor market factors and social support factors on married-working women’s childbirth intention. Data from a national survey of married-working women (Korean longitudinal survey of women and families) are used in this study. The findings are as follows. First, logistic regression analyses that married-working women’s childbirth intention could be predicted by 1) personal characteristic factors such as age (p <.000), education level (p <.029), parenthood (p <.000) monthly pay (p <.01); 2) husband support factors, such as satisfaction with division of household labor (p <.009), time with family (p <.049) influence of family life on work (p <.083); and 3) institutional support factors such as regular position (p <.015), regression analysis showed similar results. Personal characteristic factors and husband support factors had statistically significant effects on the number of future children. Personal value factors such as traditional family support (p <.05) proved to be the best predictor of the number of future children. Institutional support factors, on the other hand, did not have statistically significant effect on the number of future children. In a nutshell, personal characteristics and husband support proved to be the most important determinant of married-working women’s childbirth intention. The findings suggest that family friendly policy and flexible labor market policy will impact marriedworking women’s childbirth intention.
장한나 ( Han Na Jang ),김성중 ( Seong Joong Kim ),이용택 ( Yong Taek Lee ),이규호 ( Kew Ho Lee ) 한국공업화학회 2013 공업화학 Vol.24 No.5
중공사형 막은 지난 수십 년간 빠르게 성장하고 있는 새로운 기술의 하나이다. 또한, 고분자 소재를 이용한 분리막은 기체분리, 연료전지, 수처리, 폐수처리, 유기물 분리 등 여러 분야에서 주목 받고 있다. 그중에서도 액체분리용 역삼투(RO)와 한외여과(Ultrafiltration)막의 중간 특성을 갖는 나노여과(Nanofiltration)막은 상대적으로 역삼투 막에 비하여 낮은 투자비와 낮은 운전압력, 높은 투과 성능을 가지며 다가 음이온 염과 200∼1000 gmol-1사이의 유기물에 대한 높은제거율을 갖는 막이다. 본 논문에서는 NF 중공사 분리막의 소재, 제조 방법(상전이법과 계면중합법)에 따른 멤브레인의 구조 제어 및 다양한 특성 평가에 관한 연구동향을 살펴보고자 한다. 현재 대부분의 NF용 분리막은 평막형(plate and frame type)이나 나권형(spiral wound type)으로 제품화 되고 있는데, 중공사형(hollow-fiber type)의 제품화가 지연되고 있는 것은 기존 소재를 바탕으로 제조할 경우 강도면에서 안정적이지 못한 면이 있으므로 새로운 소재를 개발하거나 기존 소재의 개선이 필요할 것으로 보인다. 이러한 부분을 보완할 수 있을 만한 제조 기술이 확보된다면 중공사 형태의 나노여과막이 점차 나권형막을 대체하여 시장에서 높은 점유율을 나타낼 수 있을 것이다. Hollow-fiber membranes, is one of the new technologies that is growing rapidly in the past few decades. In addition, separation membranes using polymer materials, have attracted attentions in various fields including gas separation, fuel cells, water treatment, wastewater treatment, and organic separation. Nanofiltration (NF) membranes having the separation characteristics in the intermediate range between ultrafiltration and reverse osmosis (RO) membranes for liquid separation, with relatively low investment cost and operating pressure lower than that of RO membranes, have high permeance and rejection performance of multivalent ions as well as organic compounds of molecular weight between 200∼1000 gmol -1 . In this paper, we would like to review the research trends on the various structure control and characterization of NF hollow fiber membranes with respect to materials and the methods of preparation (phase inversion method and interfacial polymerization method). Currently, most of NF membranes have been manufactured by plate and frame types or spiral wound types. But hollow fiber types have delayed in commercial products, because of the weak strength when to produce on the basis of the existing materials, therefore the development of new materials or improvement of existing materials will be needed. If improving manufacturing technology is available, hollow fiber types will replace spiral wound types and gradually show a higher market share.
지방행정구역 통합요인이 주민의 인식에 미친 영향: 영주시-영풍군 도농통합사례를 중심으로
장한나 ( Han Na Jang ),문상호 ( Sang Ho Moon ),이명석 ( Myung Suk Lee ) 한국지방행정연구원 2012 地方行政硏究 Vol.26 No.3
도농통합의 경제적 효과에 주안점을 두어 온 기존의 선행연구와 차별화하여 본 연구는 도농통합의 제요인이 주민의 인식에 미치는 연관성을 분석하였다. 실증분석 결과, 생활서비스 요인의 개선은 농촌지역주민들의 도농통합효과에 관한 인식에 긍정적인 영향을 주었으며, 사회 정서적 요인의 저하는 통합효과의 주민인식에 부정적인 영향을 미친 것으로 나타났다. 또한 이러한 결과는 배타적 폐쇄적인 특성이 강한 농촌지역이 도시지역에 흡수통합 될 경우 더욱 두드러진 것으로 평가되었다. 정책적 함의로는 도농통합의 계획단계로부터 생활서비스 요인 및 사회 정서적 요인, 도농지역 주민간 소통의 문제를 충분히 고려할 필요가 있음을 주문하는 바이다. Unlike previous studies focusing on economic efficiency of the ``City-County Consolidation``, we conducted a study on the difference in the perceptions of the effects of consolidation between urban and rural residents. Through the empirical analysis we found that life-related services has positive influence on the rural residents` perceptions of administrative consolidation, while the socio-emotional situation was related adversely. The economic factors had only statistically insignificant impacts. For residents of rural areas living in a relatively exclusive and closed environment, the results were found as more remarkable. We suggest that life-related services and socio-emotional components should be carefully considered in the early planning stage of the process of administrative consolidation between city and county.